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1. WO2009004689 - HEAD SUSPENSION ASSEMBLY AND STORAGE MEDIUM DRIVING DEVICE

Publication Number WO/2009/004689
Publication Date 08.01.2009
International Application No. PCT/JP2007/063141
International Filing Date 29.06.2007
IPC
G11B 21/21 2006.01
GPHYSICS
11INFORMATION STORAGE
BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
21Head arrangements not specific to the method of recording or reproducing
16Supporting the heads; Supporting the sockets for plug-in heads
20while the head is in operative position but stationary or permitting minor movements to follow irregularities in surface of record carrier
21with provision for maintaining desired spacing of head from record carrier, e.g. fluid-dynamic spacing, slider
G11B 21/10 2006.01
GPHYSICS
11INFORMATION STORAGE
BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
21Head arrangements not specific to the method of recording or reproducing
02Driving or moving of heads
10Track finding or aligning by moving the head
CPC
G11B 5/4826
GPHYSICS
11INFORMATION STORAGE
BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
5Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
48Disposition or mounting of heads ; or head supports; relative to record carriers
4806specially adapted for disk drive assemblies, e.g. assembly prior to operation, hard or flexible disk drives
4826Mounting, aligning or attachment of the transducer head relative to the arm assembly, e.g. slider holding members, gimbals, adhesive
G11B 5/4873
GPHYSICS
11INFORMATION STORAGE
BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
5Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
48Disposition or mounting of heads ; or head supports; relative to record carriers
4806specially adapted for disk drive assemblies, e.g. assembly prior to operation, hard or flexible disk drives
4873the arm comprising piezoelectric or other actuators for adjustment of the arm
G11B 5/5552
GPHYSICS
11INFORMATION STORAGE
BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
5Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
48Disposition or mounting of heads ; or head supports; relative to record carriers
54with provision for moving the head into or out of its operative position or across tracks
55Track change, selection or acquisition by displacement of the head
5521across disk tracks
5552using fine positioning means for track acquisition separate from the coarse (e.g. track changing) positioning means
G11B 5/596
GPHYSICS
11INFORMATION STORAGE
BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
5Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
48Disposition or mounting of heads ; or head supports; relative to record carriers
58with provision for moving the head for the purpose of maintaining alignment of the head relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
596for track following on disks
Applicants
  • 東芝ストレージデバイス株式会社 Toshiba Storage Device Corporation [JP]/[JP] (AllExceptUS)
  • 小金沢 新治 KOGANEZAWA, Shinji [JP]/[JP] (UsOnly)
Inventors
  • 小金沢 新治 KOGANEZAWA, Shinji
Agents
  • 酒井 宏明 SAKAI, Hiroaki
Priority Data
Publication Language Japanese (JA)
Filing Language Japanese (JA)
Designated States
Title
(EN) HEAD SUSPENSION ASSEMBLY AND STORAGE MEDIUM DRIVING DEVICE
(FR) ENSEMBLE DE SUSPENSION DE TÊTE ET DISPOSITIF D'ENTRAÎNEMENT DE SUPPORT DE MÉMORISATION
(JA) ヘッドサスペンションアセンブリおよび記憶媒体駆動装置
Abstract
(EN)
Arm pieces (64, 65) bend according to the contraction and expansion of piezoelectric elements (66, 67). Driving force acts from the arm pieces (64, 65) to a head slider (23) based on the bending of the arm pieces (64, 65). A fixing piece (62) for fixing the head slider (23) is connected to a head suspension with a flexible long piece (63, 63). The displacement of the head slider (23) is allowed based on the flexure of the long piece (63, 63). As a result, the driving force displaces the head slider (23). The arm pieces (64, 65) are slidably in contact with the surface of the head slider (23) and therefore the bending of the arm pieces (64, 65) is not restrained. The arm pieces (64, 65) are defined individually from the fixing piece (62). The shapes of the arm pieces (64, 65) are freely designed. As a result, a sufficient length is secured in the arm pieces (64, 65). The arm pieces (64, 65) can be transformed with large transformation amount. The displacement amount of the head slider (23) is increased.
(FR)
Des éléments de bras (64, 65) se plient selon la contraction et l'expansion d'éléments piézoélectriques (66, 67). Une force d'entraînement agit des éléments de bras (64, 65) vers un coulisseau de tête (23) sur la base de la flexion des éléments de bras (64, 65). Un élément de fixation (62) pour fixer le coulisseau de tête (23) est relié à une suspension de tête par un long élément (63, 63) flexible. Le déplacement du coulisseau de tête (23) est permis sur la base de la flexion du long élément (63, 63). En conséquence, la force d'entraînement déplace le coulisseau de tête (23). Les éléments de bras (64, 65) sont en contact coulissant avec la surface du coulisseau de tête (23) et, par conséquent, la flexion des éléments de bras (64, 65) n'est pas limitée. Les éléments de bras (64, 65) sont définis individuellement à partir de l'élément de fixation (62). Les formes des éléments de bras (64, 65) sont conçues librement. En conséquence, une longueur suffisante est garantie dans les éléments de bras (64, 65). Les éléments de bras (64, 65) peuvent être transformés avec une grande quantité de transformation. La quantité de déplacement du coulisseau de tête (23) est augmentée.
(JA)
 圧電素子(66、67)の収縮や伸張に応じて腕片(64、65)は湾曲する。腕片(64、65)の湾曲に基づき腕片(64、65)からヘッドスライダ(23)に駆動力が作用する。ヘッドスライダ(23)を固定する固定片(62)は可撓性の長片(63、63)でヘッドサスペンションに結合される。長片(63、63)の撓みに基づきヘッドスライダ(23)の変位は許容される。その結果、駆動力はヘッドスライダ(23)を変位させる。腕片(64、65)はスライド自在にヘッドスライダ(23)の表面に接触することから、腕片(64、65)の湾曲は拘束されない。しかも、腕片(64、65)は固定片(63)と別個に区画される。腕片(64、65)の形状は自由に設計される。その結果、腕片(64、65)では十分な長さが確保される。腕片(64、65)は大きな変形量で変形することができる。ヘッドスライダ(23)の変位量は増大する。
Also published as
Latest bibliographic data on file with the International Bureau